Fauna
Fungus · GBIF taxon 8060178

Ruby Bolete

Hortiboletus rubellus

Also known as Red Bolete

Ruby boletes feature a crimson-to-ruby red cap paired with vibrant yellow sponge-like pores beneath. When the flesh is bruised or cut, it undergoes a slow chemical reaction that turns light blue. These dainty fungi form underground mycorrhizal relationships with broadleaf trees, popping up on mossy woodland floors and park lawns during late summer and autumn.

FungiForest FloorColorful
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
  • Mycorrhizal
Predators
  • Fungus gnats
  • Slugs
  • Squirrels
ThreatsHabitat loss, soil compaction, clear-cutting of host trees
HabitatsDeciduous woodlands, parks, grassy woodland margins
Life spanPerennial mycelium; fruiting bodies persist 1–2 weeks
  1. OrderBoletales
  2. FamilyBoletaceae
  3. GenusHortiboletus
  4. SpeciesHortiboletus rubellus
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Many wild mushrooms have toxic look-alikes; never eat wild fungi based on app identification alone.
Responsible observation
  • Observe Cap Features: Check for a velvety red cap and yellow sponge-like pores underneath.
  • Note Color Reactions: Gently slice or press the flesh to watch for a subtle blue staining.
  • Check Host Trees: Look near oaks, beeches, and lime trees in grassy woodland margins.
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